UPDATE 1-U.S. complaint data puts spotlight on Capital One
June 20, 2012 at 18:05 PM EDT
June 20 (Reuters) - Despite having less than 6 percent of the U.S. credit card market by purchase volume, Capital One accounts for about 20 percent of card complaints filed with the new federal consumer watchdog, according to a review of nearly a year's worth of data collected by the agency.